EP3056507B1 - C-aryl glucoside derivative, preparation method for same, and medical applications thereof - Google Patents

C-aryl glucoside derivative, preparation method for same, and medical applications thereof Download PDF

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EP3056507B1
EP3056507B1 EP14841970.8A EP14841970A EP3056507B1 EP 3056507 B1 EP3056507 B1 EP 3056507B1 EP 14841970 A EP14841970 A EP 14841970A EP 3056507 B1 EP3056507 B1 EP 3056507B1
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EP3056507A1 (en
EP3056507A4 (en
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Huijuan Zhong
Jianchun LIAO
Hongping Yu
Yaochang XU
Qing Li
Jianghua Chen
Peng Gao
Songliang TAN
Shaobao WANG
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Youngene Therapeutics Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H7/00—Compounds containing non-saccharide radicals linked to saccharide radicals by a carbon-to-carbon bond
    • C07H7/06—Heterocyclic radicals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/70—Carbohydrates; Sugars; Derivatives thereof
    • A61K31/7042—Compounds having saccharide radicals and heterocyclic rings
    • A61K31/7048—Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin, digitoxin or digoxin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P13/00—Drugs for disorders of the urinary system
    • A61P13/12—Drugs for disorders of the urinary system of the kidneys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/04—Anorexiants; Antiobesity agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/06—Antihyperlipidemics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P5/00—Drugs for disorders of the endocrine system
    • A61P5/48—Drugs for disorders of the endocrine system of the pancreatic hormones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P5/00—Drugs for disorders of the endocrine system
    • A61P5/48—Drugs for disorders of the endocrine system of the pancreatic hormones
    • A61P5/50—Drugs for disorders of the endocrine system of the pancreatic hormones for increasing or potentiating the activity of insulin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/12—Antihypertensives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
    • C07D409/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/08—Bridged systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H7/00—Compounds containing non-saccharide radicals linked to saccharide radicals by a carbon-to-carbon bond
    • C07H7/04—Carbocyclic radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H9/00—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical
    • C07H9/02—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical the hetero ring containing only oxygen as ring hetero atoms
    • C07H9/04—Cyclic acetals

Definitions

  • the present invention belongs to the field of drugs, specifically relates to a C-aryl glucoside derivative, a preparation method for same and medical applications thereof.
  • Diabetes is a metabolic disorder with recurrent or persistent hyperglycemia.
  • Abnormal level of blood glucose can lead to some serious and long-term complications, including cardiovascular disease, chronic renal failure, retinal damage, nerve damage, microvascular damage and obesity.
  • hypoglycemic drugs used currently in clinical treatment, including biguanide compounds, sulfonylurea compounds, insulin resistance improving agents, ⁇ -glucosidase inhibitors and so on.
  • biguanide compounds sulfonylurea compounds
  • insulin resistance improving agents e.g., ⁇ -glucosidase inhibitors
  • ⁇ -glucosidase inhibitors e.g., ⁇ -glucosidase inhibitors and so on.
  • each of these drugs has various toxic and side effects, and is unable to meet the needs of long-term treatment.
  • biguanide compounds can cause lactic acidosis; sulfonylurea compounds can lead to hypoglycemia; insulin resistance improving agents can induce edema and heart failure, and ⁇ -glucosidase inhibitors can cause abdominal pain, distention, diarrhea and other symptoms. Because of the above situation, it is necessary to develop safer and more effective novel antidiabetic drugs to meet the needs of diabetes treatment.
  • SGLTs glucose transporter protein
  • active transport sodium-dependent glucose co-transporter protein
  • SGLTs family members with glucose transporter function are mainly distributed in intestine and the proximal tubule of kidney and so on, accordingly it can be inferred that the SGLTs family members play a key role in glucose absorption in intestine and glucose reuptake in kidney, and they will become one of the ideal potential targets for treating diabetes.
  • one of family members is SGLT-1 protein that is mainly distributed in the intestinal mucosal cells of small intestine, and little expressed in cardiac muscle and kidney. It is mainly collaborative with GLUTs proteins to regulate glucose absorption in intestine.
  • the another one of family members is SGLT-2 is mainly responsible for regulating glucose reuptake in kidney due to its high level of expression in kidney, i.e., when glucose in urine pass through glomerulus, it can actively attach to the epithelial cells of renal tubule and be transported into the cells and recycled. During this process, SGLT-2 is responsible for 90% of reabsorption, the remaining 10% of reabsorption is completed by SGLT-1.
  • SGLT-2 as a major transport protein has been further confirmed in animal tests.
  • SGLT-2 mRNA levels of rat renal cortex cells are inhibited by a specific SGLT-2 antisense oligonucleotides, thereby significantly inhibiting the reuptake of rat renal glucose.
  • a SGLTs SGLT-1/SGLT-2 protein inhibitor will be developed, through the regulation of its glucose transport function, it is possible to control intestinal absorption of glucose on one hand; and on the other hand to inhibit the reuptake of the renal glucose and enhance discharge of glucose from the urine, thereby achieving more systematic hypoglycemic effect. Therefore, a dual action inhibitor can be an ideal drug for treating diabetes.
  • SGLTs protein inhibitors can be useful for the treatment of diabetes-related complications, such as retinopathy, neuropathy, nephropathy, insulin resistance caused by glucose metabolism disorders, hyperinsulinemia, hyperlipidemia, obesity and so on.
  • SGLTs protein inhibitors can be combined with the existing therapeutic agents, such as sulfonamides, thiazolidinediones, metformin, and insulin, etc. Without affecting efficacy, the dosage of drugs can be reduced to avoid or reduce the occurrence of adverse effects, thereby improving the adaptability of the patient to the treatment.
  • SGLTs protein inhibitor As a novel drug for treating diabetes, SGLTs protein inhibitor has a good development prospect. Therefore, there is an urgent need to develop an effective and good pharmacokinetic property, high safety compound for the treatment of diabetes and related metabolic disorder diseases.
  • WO 2011/048112 , WO 2012/140597 , WO 2012/165914 , US 2003/114390 , and EP 2604612 all disclose C-aryl glucoside derivatives for pharmaceutical use as SGLT inhibitors. Of these documents, the latter three disclose C-aryl glucoside derivatives specifically as SGLT2 inhibitors.
  • the object of the present invention is to solve the above technical problems and provide a compound of formula (I-a3), a tautomer, enantiomer, diastereomer, racemate or a pharmaceutically acceptable salt thereof: wherein:
  • the compounds of formula (I-a3) of the present invention include, but are not limited to, the following exemplary compounds:
  • Example No. Structure Name (1S,2S,3S,4R,5S)-5-(4-chloro-3-((2,3 -dihydrobenzo[b][1,4]dioxin-6-yl) methyl)phenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • Example 2 (1S,2S,3S,4R,5S)-5-(4-cyclopropyl-3 -((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methyl)phenyl)-1-(hydroxymethyl )-6,8-dioxabicyclo[3.2.1]octane-2,3,4 -triol
  • Example 7 (1S,2S,3S,4R,5S)-5-(3-((2,
  • the present invention provides a process for preparing the compound of formula (I-a3), comprising the following steps of: condensing a compound of formula (II) with a compound of formula (III) to give a compound of formula (IV), converting the compound of formula (IV) according to different definition of R 9 and R 10 into a compound of formula (V), and then deprotecting the compound of formula (V) to give the compound of formula (I) as follows: wherein:
  • Z is selected from the group consisting of bromine and iodine
  • Pg 1 , Pg 2 , Pg 3 and Pg 4 are each independently selected from the group consisting of benzyl, trimethylsilyl and acetyl
  • Pg 5 is selected from the group consisting of hydrogen and C 1-3 alkyl.
  • the present invention provides a pharmaceutical composition
  • a pharmaceutical composition comprising a therapeutically effective amount of the compound of formula (I), the tautomer, enantiomer, diastereomer, racemate or the pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
  • the present invention relates to use of the compound of formula (I-a3), the tautomer, enantiomer, diastereomer, racemate or the pharmaceutically acceptable salt thereof in the preparation of a SGLTs protein inhibitor (Sodium-dependent glucose transporter protein inhibitor) medicament.
  • a SGLTs protein inhibitor sodium-dependent glucose transporter protein inhibitor
  • the present invention relates to use of the compound, tautomer, enantiomer, diastereomer, racemate or the pharmaceutically acceptable salt thereof, or the pharmaceutical composition in the preparation of the medicament for treating or delaying the development or the attack of the diseases selected from the group consisting of diabetes, diabetic retinopathy, diabetic neuropathy, diabetic nephropathy, insulin resistance, hyperglycemia, hyperinsulinemia, elevated levels of fatty acids or glycerol, hyperlipidemia, obesity, hypertriglyceridemia, X syndrome, diabetes complications or atherosclerosis and hypertension.
  • diseases selected from the group consisting of diabetes, diabetic retinopathy, diabetic neuropathy, diabetic nephropathy, insulin resistance, hyperglycemia, hyperinsulinemia, elevated levels of fatty acids or glycerol, hyperlipidemia, obesity, hypertriglyceridemia, X syndrome, diabetes complications or atherosclerosis and hypertension.
  • the compound of formula (I-a3) showed very excellent inhibition effect of sodium-dependent glucose transporter protein (SGLTs protein inhibitor) and hypoglycemic effect.
  • SGLTs protein inhibitor sodium-dependent glucose transporter protein
  • hypoglycemic effect In addition to significant inhibition of SGLT-2, it also has good inhibition of SGLT-1, so it can be used to prepare an SGLT-2 and SGLT-1 dual protein inhibitor, it can also be independently used to prepare a SGLT-2 inhibitor or a SGLT-1 protein inhibitor.
  • C 1-8 alkyl refers to a saturated aliphatic straight-chain and branched-chain hydrocarbon group including 1 to 8 carbon atoms, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, sec-butyl, n-pentyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 2,2-dimethylpropyl, 1-ethylpropyl, 2-methylbutyl, 3-methylbutyl, n-hexyl, 1-ethyl-2-methylpropyl, 1,1,2-methylpropyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 2,2-dimethylbutyl, 1,3-dimethylbutyl, 2-ethylbutyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 2,3-dimethylbutyl, n
  • the alkyl may be substituted or unsubstituted.
  • the substituent may be substituted on any available connection points, preferably the substituent group(s) is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 , wherein the C 1-8 alkyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl and 5- to 10-membered heteroaryl are each optionally substitute
  • Cycloalkyl refers to a saturated or partially unsaturated, monocyclic or polycyclic hydrocarbon substituent
  • C 3-8 cycloalkyl refers to a cycloalkyl group including 3 to 8 carbon atoms
  • 5- to 7-membered cycloalkyl refers to a cycloalkyl group including 5 to 7 carbon atoms, for example
  • Non-limiting examples of monocyclic cycloalkyl group include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cyclohexadienyl, cycloheptyl, cycloheptatrienyl, cyclooctyl, etc.
  • Polycyclic cycloalkyl group includes a cycloalkyl having a spiro ring, fused ring and bridged ring.
  • “Spiro cycloalkyl” refers to a polycyclic group with rings connected through one common carbon atom (called a spiro atom), wherein these rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system.
  • the spiro cycloalkyl is divided into mono-spiro cycloalkyl, di-spiro cycloalkyl and poly-spiro cycloalkyl,
  • mono-spiro cycloalkyl include:
  • fused cycloalkyl refers to an all-carbon polycyclic group in which each ring in the system shares an adjacent pair of carbon atoms with another ring, wherein one or more rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system. According to the number of ring, the fused cycloalkyl is divided into bicyclic, tricyclic, tetracyclic and polycyclic fused cycloalkyl, non-limiting examples of fused cycloalkyl include:
  • Bridged cycloalkyl refers to an all-carbon polycyclic group in which any two rings in the system share two disconnected carbon atoms, where the rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system. According to the number of rings, bridged cycloalkyl is divided into bicyclic, tricyclic, tetracyclic and polycyclic bridged cycloalkyl, non-limiting examples of fused cycloalkyl include:
  • the cycloalkyl may be fused to the ring of aryl, heteroaryl or heterocyclyl, wherein the ring connected with the parent structure is cycloalkyl, non-limiting examples include indanyl, tetrahydro-naphthyl, benzo cycloheptyl, etc.
  • the cycloalkyl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Heterocyclyl refers to a saturated or partially unsaturated, monocyclic or polycyclic hydrocarbon substituent, wherein one or more ring atoms are heteroatoms selected from the group consisting of nitrogen, oxygen and S(O) p (wherein n is an integer from 0 to 2), but the cyclic part does not include -O-O-, -O-S- or -S-S-, and the remaining ring atoms are carbon.
  • “5- to 7-membered heterocyclyl” refers to a cyclyl group including 5 to 7 ring atoms
  • “3- to 8-membered heterocyclyl” refers to a cyclyl group including 3 to 8 ring atoms.
  • Non-limiting examples of monocyclic heterocyclyl include pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, homopiperazinyl, etc.
  • Polycyclic heterocyclyl group includes a heterocyclyl having a spiro ring, fused ring and bridged ring.
  • “Spiro heterocyclyl” refers to a polycyclic heterocyclyl group with rings connected through one common atom (called a spiro atom) hared between the rings, wherein one or more ring atoms are heteroatoms selected from the group consisting of nitrogen, oxygen and S(O) p (wherein n is an integer from 0 to 2), and the remaining ring atoms are carbon. These rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system.
  • the spiro heterocyclyl is divided into mono-spiro heterocyclyl, di-spiro heterocyclyl and poly-spiro heterocyclyl, non-limiting examples of spiro heterocyclyl include:
  • fused heterocyclyl refers to a polycyclic heterocyclyl group in which each ring in the system shares an adjacent pair of atoms with another ring, wherein one or more rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system, wherein one or more ring atoms are heteroatoms selected from the group consisting of nitrogen, oxygen and S(O) p (wherein n is an integer from 0 to 2), and the remaining ring atoms are carbon. According to the number of rings, fused heterocyclyl is divided into bicyclic, tricyclic, tetracyclic and polycyclic fused heterocyclyl, non-limiting examples of fused heterocyclyl include:
  • Bridged heterocyclyl refers to a polycyclic heterocyclyl group in which any two rings in the system share two disconnected carbon atoms.
  • the rings can contain one or more double bonds, but none of the rings has a completely conjugated ⁇ -electron system, wherein one or more ring atoms are heteroatoms selected from the group consisting of nitrogen, oxygen and S(O) p (wherein n is an integer from 0 to 2), and the remaining ring atoms are carbon.
  • bridged heterocyclyl is divided into bicyclic, tricyclic, tetracyclic and polycyclic bridged heterocyclyl, non-limiting examples of bridged heterocyclyl include:
  • heterocyclyl may be fused to the ring of aryl, heteroaryl or cycloalkyl, wherein the ring connected with the parent structure is heterocyclyl, and non-limiting examples include:
  • the heterocyclyl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Aryl refers to an all-carbon monocyclic ring or polycyclic fused ring (namely, ring in the system shares an adjacent pair of carbon atoms)with a conjugated ⁇ -electron system.
  • “5- to 7-membered aryl” refers to an all-carbon aryl including 5 to 7 carbon atoms, such as phenyl and naphthyl. The aryl may be fused to the ring of heteroaryl, heterocyclyl or cycloalkyl, wherein the ring connected with the parent structure is aryl, and non-limiting examples include:
  • the aryl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Heteroaryl refers to a heteroaromatic system comprising 1 to 4 heteroatoms, wherein the heteroatom comprises nitrogen, oxygen or S(O) p (wherein n is an integer from 0 to 2).
  • “5- to 7-membered heteroaryl” refers to a heteroaromatic system including 5 to 7 ring atoms
  • “5- to 10-membered heteroaryl” refers to a heteroaromatic system including 5 to 10 ring atoms, such as furyl, thienyl, pyridyl, pyrrolyl, N-alkyl pyrrolyl, pyrimidinyl, pyrazinyl, imidazolyl, tetrazolyl, etc.
  • the heteroaryl may be fused to the ring of aryl, heterocyclyl or cycloalkyl, wherein the ring tconnected with the parent structure is heteroaryl, tand non-limiting examples include:
  • the heteroaryl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • alkenyl refers to an alkyl group as defined above that has at least two carbon atoms and at least one carbon-carbon double bond
  • C 2-8 alkenyl refers to a straight-chain and branched-chain alkenyl including 2 to 8 carbon atoms, for example, vinyl, 1-propenyl, 2-propenyl, 1-, 2- and 3-butenyl etc.
  • the alkenyl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Alkynyl refers to an alkyl group as defined above that has at least two carbon atoms and at least one carbon-carbon triple bond
  • C 2-8 alkynyl refers to a straight-chain and branched-chain alkynyl including 2 to 8 carbon atoms, for example, ethynyl, 1-propynyl, 2-propynyl, 1-, 2- and 3-butynyl, etc.
  • the alkynyl may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, cyano, nitro, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Alkoxy refers to -O-(alkyl), wherein the alkyl group is as defined above, "C 1-8 alkoxy” refers to an alkoxy including 1 to 8 carbon atoms, and non-limiting examples include methoxy, ethoxy, propoxy, butoxy, etc.
  • the alkoxy may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Cycloalkoxy refers to -O-(unsubstituted cycloalkyl), wherein the cycloalkyl group is as defined above, "C 3-8 cycloalkoxy” refers to a cycloalkoxy including 3 to 8 carbon atoms, and non-limiting examples include cyclopropyloxy, cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, etc.
  • the cycloalkoxy may be substituted or unsubstituted.
  • the substituent is one or more groups independently selected from the group consisting of deuterium, halogen, hydroxy, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, 3- to 8-membered heterocyclyl, C 5-10 aryl, 5- to 10-membered heteroaryl, C 1-6 alkoxy, C 3-8 cycloalkoxy, -S(O) p R 11 , -C(O)R 11 , -C(O)OR 11 , -NR 12 R 13 and -C(O)NR 12 .
  • Halogen refers to fluorine, chlorine, bromine or iodine.
  • ⁇ -configuration refers to a mixture with uncertain ratio of ⁇ -, ⁇ -configuration product, preferably a mixture mainly comprising ⁇ -configuration, more preferably a mixture comprising ⁇ - configuration more than 90% by weight, the " ⁇ -configuration” is also shown by “ “ “”, and ⁇ -configurations is also shown by “ “.
  • heterocyclyl optionally substituted by alkyl means that the alkyl can be, but need not be, present, its meaning includes the instances in which heterocyclyl is substituted or unsubstituted by alkyl.
  • Substituted refers to one or more hydrogen atoms of the group, preferably up to 5, more preferably 1 to 3 hydrogen atoms, each independently substituted by a corresponding number substituent group. It goes without saying that the substituents exist in in their only possible position, the person skilled in the art can determine whether the substitution is possible or impossible by experiment or theory without paying too much effort. For example, the combination of amino or hydroxy having free hydrogen and the carbon atoms having an unsaturated bonds (e.g. olefinic) may be unstable.
  • a “pharmaceutical composition” refers to a mixture comprising one or more compounds described in the present invention or physiologically/pharmaceutically acceptable salts or prodrugs thereof and other components such as physiologically/pharmaceutically acceptable carriers and excipients.
  • the purpose of a pharmaceutical composition is to facilitate administration of a compound to an organism, which will help absorption of the active ingredient, thereby realizing biological activity.
  • NMR nuclear magnetic resonance
  • LC-MS liquid chromatography-mass spectrometry
  • NMR chemical shifts ( ⁇ ) are given in 10 -6 (ppm). NMR was determined by a Bruker AVANCE-400 instrument. The solvents were deuterated dimethyl sulfoxide (DMSO-d 6 ), deuterated chloroform (CDCl 3 ) and deuterated methanol (CD 3 OD). The internal standard was tetramethylsilane (TMS).
  • LC-MS was determined by an Agilent 1200 Infinity Series mass spectrometer.
  • High performance liquid chromatography HPLC was determined by an Agilent 1200DAD high pressure liquid chromatography spectrometer (Sunfire C18 150 ⁇ 4.6 mm chromatographic column).
  • TLC thin-layer silica gel chromatography
  • Yantai Huanghai HSGF254 or Qingdao GF254 silica gel plate was used.
  • the dimension of the plates used in TLC was 0.15 mm to 0.2 mm, and the dimension of the plates used in product purification was 0.4 mm to 0.5 mm.
  • the known starting materials used in the examples of the present invention can be synthesized by methods known in the art or can be commercially available from ABCR GmbH & Co. KG, Acros Organics, Aldrich Chemical Company, Darui Chemical Company, etc.
  • Argon or nitrogen atmosphere means that a reaction flask is equipped with about 1L volume argon or nitrogen balloon.
  • Hydrogen atmosphere means that a reaction flask is equipped with about 1L hydrogen balloon.
  • Parr 3916EKX hydrogenated instrument and clear blue QL-500 hydrogen generator or HC2-SS hydrogenated instrument was used.
  • the hydrogenation reaction is usually conducted by vacuumizing, filling hydrogen, repeatedly for three times.
  • the solution refers to an aqueous solution.
  • reaction temperature was room temperature.
  • Room temperature is the optimum reaction temperature, and ranged from 20°C to 30°C.
  • reaction progress in the examples was monitored by thin layer chromatography (TLC), and the system of developing solvent included: dichloromethane and methanol system, n-hexane and ethyl acetate system.
  • TLC thin layer chromatography
  • the volume ratio of solvent was adjusted according to the polarity of the compound.
  • the elution system for purification of the compounds by column chromatography and thin layer chromatography included: A: dichloromethane and methanol system, B: n-hexane and ethyl acetate system.
  • A dichloromethane and methanol system
  • B n-hexane and ethyl acetate system.
  • the volume ratio of solvent was adjusted according to the polarity of the compound, and a small amount of ammonia and acetic acid can be added.
  • Step 2 (2-chloro-5-iodophenyl)-(2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methanone
  • reaction solution was poured into ice water, the organic phase was separated, the aqueous phase was extracted with EtOAc, the organic phase was combined, and washed successively with 1M hydrochloric acid, 1M KOH aqueous solution and saturated brine, then dried over anhydrous sodium sulfate and concentrated to give the title product (28 g, yield of two steps: 98.7%).
  • Step 3 6-(2-chloro-5-iodobenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine
  • Step 4 (3R,4S,5S,6R)-2-(4-chloro-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)meth yl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • 6-(2-chloro-5-iodobenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine (5.0 g, 12.95 mmol) was dissolved in a mixed solvent of THF (20 mL) and toluene (20 mL). The reaction mixture was cooled to -78°C, then a solution of n-BuLi in n-hexane (1.6 M, 12.5 mL, 20 mmol) was added. The reaction mixture was stirred at this temperature for 40 minutes.
  • Step 5 (3R,4S,5S,6R)-6-(((tert-butyldimethylsilyl)oxy)methyl)-2-(4-chloro-3-((2, 3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-2-methoxytetrahydro-2 H -pyran-3,4, 5-triol
  • Step 6 tert-butyldimethyl(((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methoxy)silane
  • Step 7 ((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzo[ b ] [1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methanol
  • Step 8 (2S,3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzo[ b ] [1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2-carbaldehyde
  • Oxalyl chloride (263 mg, 1.38 mmol) was dissolved in dichloromethane (3 mL), then a solution of DMSO (215 mg, 2.76 mmol) in dichloromethane (2 mL) was added after it was cooled to -78°C.
  • reaction mixture was slowly warmed up to room temperature, and stirred at room temperature for another 30 minutes. 1 M hydrochloric acid was added in an ice-water bath. The reaction solution was separated, the aqueous phase was extracted with dichloromethane, the organic phase was combined and washed with saturated brine, then dried over anhydrous sodium sulfate and concentrated to give the crude title product (902 mg, yield: 90%).
  • Step 9 ((3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzo[ b ][1, 4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2,2-diyl)dimethanol
  • the reaction mixture was heated to 50°C and stirred for 2 hours, then cooled and filtered, the filtrate was concentrated by rotary evaporation (the bath temperature is below 50°C).
  • the resulting residue was dissolved in dichloromethane, the mixture was washed with saturated brine, then dried over anhydrous sodium sulfate and concentrated.
  • the resulting residue was purified by column chromatography to give the title product (116 mg, yield: 55%).
  • Step 10 (1S,2S,3S,4R,5S)-5-(4-chloro-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl) methyl)phenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • Step 2 (2-bromo-5-iodophenyl)-(2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methanone
  • Step 3 6-(2-bromo-5-iodobenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine
  • Step 4 (3R,4S,5S,6R)-2-(4-bromo-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)meth yl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • 6-(2-bromo-5-iodobenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine 5 g, 11.6 mmol was dissolved in a mixed solvent of THF (20 mL) and toluene (20 mL) in a dry ice-acetone bath, then n-BuLi in n-hexane (1.6 M, 11 mL, 17.6 mmoL) was slowly added. The reaction mixture was stirred at this temperature for 1 hour.
  • Step 5 (3R,4S,5R,6R)-6-(acetoxymethyl)-2-(4-bromo-3-((2,3-dihydrobenzo[ b ][1, 4]dioxin-6-yl)methyl)phenyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triyl triacetate
  • Step 6 (3R,4S,5R,6R)-6-(acetoxymethyl)-2-(4-cyclopropyl-3-((2,3-dihydrobenzo [ b ][1,4]dioxin-6-yl)methyl)phenyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triyl triacetat e
  • reaction mixture was purged with N 2 for 15 minutes, then PCy 3 (25 mg, 0.0894 mmol) was added, and then N 2 was sequentially purged for 30 minutes.
  • the reaction mixture was heated to 100°C and reacted in a sealed tube for 6 hours, then cooled, diluted with EtOAc, and then washed successively with water and saturated brine, then dried over anhydrous sodium sulfate and concentrated.
  • the resulting residue was purified by column chromatography to give a white foamy solid (415 mg, yield: 74%).
  • Step 7 (3R,4S,5S,6R)-2-(4-cyclopropyl-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl) methyl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • Step 8 (3R,4S,5S,6R)-6-(((tert-butyldimethylsilyl)oxy)methyl)-2-(4-cyclopropyl-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-2-methoxytetrahydro-2 H -pyra n-3,4,5-triol
  • Step 9 tert-butyldimethyl(((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-cyclopropy 1-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyr an-2-yl)methoxy)silane
  • Step 10 ((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-cyclopropyl-3-((2,3-dihydrob enzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methanol
  • Step 11 (2S,3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-cyclopropyl-3-((2,3-dihydrobe nzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2-carbaldehyde
  • Oxalyl chloride 52 mg, 0.41 mmol was dissolved in DCM (1.5 mL) at room temperature in a dry ice-acetone bath, then a solution of DMSO (42 mg, 0.54 mmol) in DCM (1.5 mL) was added dropwise, and the temperature was controlled at about -70°C.
  • Step 12 ((3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(4-cyclopropyl-3-((2,3-dihydrobenz o[ b ][1,4]dioxin-6-yl)methyl)phenyl)-6-methoxytetrahydro-2 H -pyran-2,2-diyl)dimethan ol
  • the reaction solution was left to stand, filtered, then the filtrate was concentrated to dryness below 50°C.
  • the resulting residue was dissolved in dichloromethane (50 mL), the mixture was wash with saturated brine (50 mL ⁇ 2), then dried over anhydrous sodium sulfate and filtered, the filtrate was concentrated.
  • Step 13 (1S,2S,3S,4R,5S)-5-(4-cyclopropyl-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)phenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • Example 8 (1S,2S,3S,4R,5S)-5-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methy l)-4-methylphenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • Step 2 (5-bromo-2-methylphenyl)-(2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methan one
  • Step 3 6-(5-bromo-2-methylbenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine
  • Step 4 (3R,4S,5S,6R)-2-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4-met hylphenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • 6-(5-bromo-2-methylbenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine (5.5 g, 17.2 mmol) was dissolved in a mixed solvent of THF (20 mL) and toluene (20 mL). The reaction mixture was placed in a dry ice-acetone bath, then n-BuLi in n-hexane (1.6 M, 20 mL, 31 mmoL) was slowly added.
  • Step 5 (3R,4S,5S,6R)-6-(((tert-butyldimethylsilyl)oxy)methyl)-2-(3-((2,3-dihydr Plumbingzo[ b ][1,4]dioxin-6-yl)methyl)-4-methylphenyl)-2-methoxytetrahydro-2 H -pyran-3, 4,5-triol
  • Step 6 tert-butyldimethyl(((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihyd robenzo[ b ][1,4]dioxin-6-yl)methyl)-4-methylphenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methoxy)silane
  • Step 7 ((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]dio xin-6-yl)methyl)-4-methylphenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methanol
  • Step 8 (2S,3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]dioxi n-6-yl)methyl)-4-methylphenyl)-6-methoxytetrahydro-2 H -pyran-2-carbaldehyde
  • Oxalyl chloride (762 mg, 6 mmol) was dissolved in DCM (10 mL) at room temperature.
  • the reaction mixture was placed in a dry ice-acetone bath, a solution of DMSO (625 mg, 8 mmol) in DCM (10 mL) was added dropwise, and the temperature was controlled at about -70°C.
  • Step 9 ((3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4-methylphenyl)-6-methoxytetrahydro-2 H -pyran-2,2-diyl)dimethanol
  • Step 10 (1S,2S,3S,4R,5S)-5-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4 -methylphenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • Step 2 (2-bromo-5-iodophenyl)-(2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methanone
  • Step 4 (3R,4S,5S,6R)-2-(4-bromo-3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)meth yl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • 6-(2-bromo-5-iodobenzyl)-2,3-dihydrobenzo[ b ][1,4]dioxine (5 g, 11.6 mmol) was dissolved in a mixed solvent of THF (20 mL) and toluene (20 mL). The reaction mixture was placed in a dry ice-acetone bath, then n-BuLi in n-hexane (1.6 M, 11 mL, 17.6 mmoL) was slowly added.
  • Step 5 (3R,4S,5R,6R)-6-(acetoxymethyl)-2-(4-bromo-3-((2,3-dihydrobenzo[ b ][1, 4]dioxin-6-yl)methyl)phenyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triyl triacetate
  • Step 6 (3R,4S,5R,6R)-6-(acetoxymethyl)-2-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4-ethylphenyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triyl triacetate
  • reaction mixture was purged with N 2 for 15 minutes, then PCy 3 (505 mg, 1.8 mmol) was added, and then N 2 was sequentially purged for 30 minutes.
  • the reaction mixture was heated to 100°C and reacted in a sealed tube for 6 hours, then cooled, diluted with EtOAc, then washed successively with water and saturated brine, then dried over anhydrous sodium sulfate and concentrated.
  • the resulting residue was purified by column chromatography to give a white foamy solid (2.5 g, yield: 90%).
  • Step 7 (3R,4S,5S,6R)-2-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4-eth ylphenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2 H -pyran-3,4,5-triol
  • Step 8 (3R,4S,5S,6R)-6-(((tert-butyldimethylsilyl)oxy)methyl)-2-(3-((2,3-dihydr Plumbingzo[ b ][1,4]dioxin-6-yl)methyl)-4-ethylphenyl)-2-methoxytetrahydro-2 H -pyran-3,4,5 -triol
  • Step 9 tert-butyldimethyl(((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihyd robenzo[ b ][1,4]dioxin-6-yl)methyl)-4-ethylphenyl)-6-methoxytetrahydro-2 H -pyran-2-yl) methoxy)silane
  • Step 10 ((2R,3R,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]di oxin-6-yl)methyl)-4-ethylphenyl)-6-methoxytetrahydro-2 H -pyran-2-yl)methanol
  • Step 11 (2S,3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]dio xin-6-yl)methyl)-4-ethylphenyl)-6-methoxytetrahydro-2 H -pyran-2-carbaldehyde
  • Oxalyl chloride (318 mg, 2.51 mmol) was dissolved in DCM (15 mL) at room temperature. The reaction mixture was placed in a dry ice-acetone bath, then a solution of DMSO (260 mg, 3.34 mmol) in DCM (5 mL) was added dropwise, and the temperature was controlled at about -70°C.
  • Step 12 ((3S,4S,5R)-3,4,5-tris(benzyloxy)-6-(3-((2,3-dihydrobenzo[ b ][1,4]dioxi n-6-yl)methyl)-4-ethylphenyl)-6-methoxytetrahydro-2 H -pyran-2,2-diyl)dimethanol
  • Step 13 (1S,2S,3S,4R,5S)-5-(3-((2,3-dihydrobenzo[ b ][1,4]dioxin-6-yl)methyl)-4 -ethylphenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
  • SGLT1 and SGLT2 transiently transferred HEK293 cells (prepared according to the existing literature " Diabetes, 57, 1723-1729, 2008 ", wherein cDNA of SGLT1 and SGLT2 was purchased from Origene company) were seeded in a 96-well plate. The density of the cell was 1-1.5 ⁇ 10 4 . The cells were cultured at 37°C and 5% CO 2 for 48 hours, and then washed twice with 200 ⁇ L sodium-free buffer. 90 ⁇ L sodium-containing buffer of the test compound at different concentrations was added to the well.
  • test compound was repeated in three wells for each concentration.
  • the cells were cultured at 37°C for 15 minutes, then 10 ⁇ L (in number 0.1 ⁇ Ci [ 14 C]) Methyl ⁇ -D-glucopyranoside was added to each well of the 96-well plate.
  • the cells were further cultured at 37°C for 2 hours, then the supernatant was discarded.
  • the cells were washed twice with pre-chilled sodium-free buffer and then dissolved in 100 ⁇ L NaOH (200 mM). 100 ⁇ L scintillation solution was added, and mixed well. Scintiloscope was used for the quantitative detection of 14 C.
  • IC 50 values of the compounds of various examples were calculated from the aggregation rate at different concentrations.
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EP3056507A1 (en) 2016-08-17
CA2923522A1 (en) 2015-03-12
CN105518014A (zh) 2016-04-20
WO2015032272A1 (zh) 2015-03-12
TWI652272B (zh) 2019-03-01
US20160222047A1 (en) 2016-08-04
EP3056507A4 (en) 2017-04-19
JP2016529298A (ja) 2016-09-23
CA2923522C (en) 2018-11-06
TW201512205A (zh) 2015-04-01
ES2828548T3 (es) 2021-05-26
AU2014317663B2 (en) 2018-02-08
JP6353054B2 (ja) 2018-07-04
CN107311992A (zh) 2017-11-03
CN105518014B (zh) 2018-03-23
CN107311992B (zh) 2020-08-18
US10011627B2 (en) 2018-07-03
AU2014317663A1 (en) 2016-04-28

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